思いっきり (Omoikkiri) is a Japanese adverb meaning “to one's heart's content, as much as one wants, as hard as one can, with all one's strength”.
Meanings
- adverbto one's heart's content; as much as one wants; as hard as one can; with all one's strength; to the best of one's ability; to the utmost
- nounresolution; decisiveness; determination; resignation